CN109976210A - A kind of city intelligent drainage arrangement - Google Patents
A kind of city intelligent drainage arrangement Download PDFInfo
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- CN109976210A CN109976210A CN201910179133.2A CN201910179133A CN109976210A CN 109976210 A CN109976210 A CN 109976210A CN 201910179133 A CN201910179133 A CN 201910179133A CN 109976210 A CN109976210 A CN 109976210A
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- cover plate
- manhole cover
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- rod piece
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Sewage (AREA)
Abstract
The invention discloses a kind of city intelligent drainage arrangements, belong to technical field of drainage.In the device, square rides over hoistway mouth, has a diameter larger than manhole cover plate.Manhole cover plate upper surface opens up and the matched groove of square, for being interlocked with square, one circle drainage channel of formation between manhole cover plate outer rim and square.Manhole cover plate is formed by the manhole cover plate section of several radially equal parts, and a drive adjusting device and a stress platform is fixedly installed on the hoistway inner wall of corresponding position below each well lid board member.Stress platform face drainage channel, for measuring the drain discharge at corresponding well plate part.Processor is separately connected each stress platform and each fluid pressure drive device, when the water flow that a certain stress platform reaches processor is greater than the set value, processor sends to each fluid pressure drive device and instructs, and drives each well lid board member to move down simultaneously vertical deflection, drains surface gathered water rapidly.The present invention can reduce manual operation burden, improve drainage efficiency, and then promote economic benefit.
Description
Technical field
The invention belongs to technical field of drainage, are related to a kind of city intelligent drainage arrangement.
Background technique
Urban waterlogging problem is always the difficult and complicated cases in Urbanization in China.Although in the New Town Construction in some cities
Using sponge city technology, draining water storage effect well is obtained.But sponge city is a systematic engineering of business, largely
Old city also still needs the baptism in face of urban waterlogging at present.Whenever plum rainy season set, it just will appear and see sea in city, house
Vehicle is flooded, the wonders such as trip of rowing the boat.While this makes troubles to the production and living of people, huge society's warp is also created
Ji loss.
Generate urban waterlogging the reason of be it is various, in addition to city hardening area it is excessive, drainage system planning it is unreasonable
Etc. outside main causes, drainage arrangement backwardness is also very important.
It is smaller that traditional drainage arrangement reserves discharge outlet, when a small amount of ponding, can satisfy dewatering needs.But work as ponding
When excessive, ponding could effectively be excluded by generally requiring lid is opened manually.And many drainings are equipped in urban drainage pipe network
Device, drainage works will expend a large amount of manpower and material resources, and if draining not in time, will be easier to cause ponding, waterlogging.
Summary of the invention
In view of the above-mentioned problems, the present invention proposes that one kind can automatically adjust the city intelligence of well lid opening and closing according to displacement size
It can drainage arrangement.
The technical scheme adopted by the invention is as follows:
A kind of city intelligent drainage arrangement, the device are arranged at hoistway mouth, comprising: square and manhole cover plate, wherein described
The diameter of square is greater than the diameter of the manhole cover plate；
The square rides on the hoistway mouth, and the manhole cover plate is arranged below the square；In the manhole cover plate
The same vertical line in the center of the heart and the square；A circle drainage channel is formed between the outer rim of the manhole cover plate and the square；
Flow measurement device, processor are fixedly installed on the hoistway inner wall below the manhole cover plate and institute can be driven
State the drive adjusting device that manhole cover plate moves up and down simultaneously vertical deflection；Drainage channel described in the flow measurement device face, institute
Processor is stated to be connected with the flow measurement device and the drive adjusting device respectively；
The processor receives the water flow signal that the flow measurement device measures, when water flow reaches setting value,
The processor sends to the drive adjusting device and instructs, and the drive adjusting device drives the manhole cover plate to move up and down simultaneously
Vertical deflection.
Further, the drive adjusting device includes: rod piece, hydraulicefficiency elevation structure, hydraulic connectors and hydraulic processing
Device；
It is fixedly connected at the top of the rod piece with the manhole cover plate, the rod piece bottom and upper hinge support are hinged, the upper hinge
Support is fixed on hoistway inner wall；
The hydraulicefficiency elevation structure be it is rod-shaped, be located at below the rod piece；The hydraulicefficiency elevation structure bottom is hinged under
Seat is hinged, and the lower hinge support is fixed on hoistway inner wall；The rod piece is equipped with a hinge, the hydraulicefficiency elevation structure top
Portion and the hinge are hinged；
The hydraulic processor is fixed on hoistway inner wall；The hydraulic processor passes through with the hydraulicefficiency elevation structure
The hydraulic connectors are connected, and the hydraulic processor is also connected with the processor；
The processor sends instruction to the hydraulic processor, and the hydraulic processor controls the hydraulicefficiency elevation structure
Lifting makes the manhole cover plate move up and down simultaneously vertical deflection.
Further, the length of rod piece bottom described in the positional distance that the hinge is arranged on the rod piece accounts for the bar
The 1/3 of part overall length.
Further, the flow measurement device is stress platform, and the stress platform is located above the rod piece, comprising: Gu
The bottom plate being scheduled on hoistway inner wall, and bottom plate level board connected vertically and is close to side edge above the level board and sets
The stress section set；Drainage channel described in the level board face.
Further, the square is netted integral structure, including several concentric loops and several spokes；Per adjacent two circle
Away from equal, the spoke is arranged radially interannular along outermost side ring, equal per adjacent two spokes angle；The spoke connection is most
Interior side ring outer rim and outermost side ring inner edge, and with other annulus interconnections.
Further, the upper surface of the manhole cover plate is provided with and the matched groove of the shape of the square；The square is embedding
In the groove of the manhole cover plate upper surface；There are gaps between the bottom of the groove and the lower surface of the square.
Further, the cross section of the groove is inverted trapezoidal, the inverted trapezoidal shorter bottom edge length, the annulus
The width of width and the spoke is equal.
Further, the manhole cover plate center is also provided with and the big through-holes such as the square most inner side annulus.
Further, the manhole cover plate is radially divided into several well lid board members；
The driving of fixed setting one adjusts dress on the hoistway inner wall of corresponding position immediately below each well lid board member
It sets and a stress platform；
The stress platform measures the water flow at corresponding well plate part and is transmitted to the processor, when water flow reaches
When setting value, the processor sends to each drive adjusting device and instructs, and drives each well lid board member to move up and down simultaneously vertical inclined
Turn.
Further, the lower surface of each well lid board member is fixed with one block of steel plate, the rod piece top and institute
Steel plate is stated to be weldingly connected.
The beneficial effects of the present invention are:
City intelligent drainage arrangement provided by the invention can measure drain discharge size, and root by flow measurement device
It is opened and closed manhole cover plate according to displacement size, improves drainage efficiency, reduces manual labor, realizes Quick drainage, and then promotes economic effect
Benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of drainage arrangement of the invention；
Fig. 2 is the structural schematic diagram of square；
Fig. 3 is the positive structure schematic of manhole cover plate；
Fig. 4 is the structure schematic diagram of manhole cover plate；
Fig. 5 is the positive structure schematic of well lid board member；
Fig. 6 is the structural schematic diagram of drive adjusting device；
Fig. 7 is the structural schematic diagram of stress platform；
Fig. 8 is the structure size figure of stress platform level board in embodiment；
Appended drawing reference: 1- square, 2- manhole cover plate, 3- stress platform, 4- drive adjusting device, 5- processor, 6- steel plate, 7- are recessed
Slot, 8- rod piece, 9- hinge, 10- hydraulicefficiency elevation structure, 11- lower hinge support, 12- hydraulic connectors, the hydraulic processor of 13-, 14-
Through-hole, 15- stress section, 16- upper hinge support.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
City intelligent drainage arrangement as shown in Figure 1, comprising: square 1, the driving of stress platform 3,4 of manhole cover plate 2,4 are adjusted
Device 4 and a processor 5.
Square 1 rides on hoistway mouth, and the material of square 1 and manhole cover plate 2 is cast iron.
Shown in Fig. 2, square 1 is netted integral structure, comprising: 4 concentric loops and 12 spokes.4 concentric loops
Diameter is sequentially increased from Inside To Outside, and every two adjacent rings spacing is equal.12 spokes are along the radially uniform of outermost side ring
It is arranged, angle is 30 ° between every two adjacent spoke.12 spoke connection most inner side annulus outer rims and outermost side ring inner edge, and with
Remaining two annulus interconnection.Viewed from above, annulus and spoke width are equal.It sees from horizontal direction, the upper and lower table of square 1
Face keeps concordant (annulus and spoke thickness are equal).
As shown in figures 1 and 3, the diameter of manhole cover plate 2 is less than the diameter of square 1, and manhole cover plate 2 is arranged below square 1, and
And the same vertical line in center at the center and square 1 of manhole cover plate 2.The upper surface of manhole cover plate 2 is provided with matched recessed with the shape of square 1
Slot 7.2 center of manhole cover plate be provided with the big through-holes such as 1 most inner side annulus of square, facilitate whether observation water level and has object to block
Hoistway.The cross section of groove 7 is in inverted trapezoidal, and the width of the shorter bottom edge length of inverted trapezoidal, the width of annulus and spoke is equal.Net
For lid 1 in the groove 7 of 2 upper surface of manhole cover plate, 2 central through hole of manhole cover plate accommodates 1 most inner side annulus of square.Outside manhole cover plate 2
A circle drainage channel is formed between edge and square 1.
As shown in Figure 4 and Figure 5, manhole cover plate 2 is radially put together (i.e. well lid by 4 pieces of an equal amount of well lid board members
Plate 2 is radially divided into 4 pieces of well lid board members), specifically, manhole cover plate 2 includes the first well lid board member (being denoted as 1.), the second well
Plate part (being denoted as 2.), third well lid board member (being denoted as 3.) and the 4th well lid board member (being denoted as 4.), well lid board member is 1.
3. opposite, well lid board member is 2. and 4. opposite.Each manhole cover plate component lower surface is equipped with one block of H-shaped steel plate 6, and steel plate 6 is provided with
Through-hole, manhole cover plate component lower surface correspondence open up threaded hole, and steel plate 6 is fixedly connected with well lid board member by screw.
A drive adjusting device 4 and one is fixedly installed on the hoistway inner wall of corresponding position immediately below each well lid board member
Stress platform 3.Specifically, as shown in figures 1 to 6, drive adjusting device 4 includes: rod piece 8, hydraulicefficiency elevation structure 10, hydraulic connecting
Part 12 and hydraulic processor 13.
8 bottom of rod piece and upper hinge support 16 are hinged, and 4 through-holes are offered on 16 bottom plate of upper hinge support, and upper hinge support 16 is logical
Expansion bolt is crossed to be fixed on hoistway inner wall.After 8 top of rod piece is machined to horizontal, with manhole cover plate component lower surface
Steel plate 6 is weldingly connected.
Hydraulicefficiency elevation structure 10 be it is rod-shaped, be located at the lower section of rod piece 8.10 bottom of hydraulicefficiency elevation structure and lower hinge support 11 are cut with scissors
It connects, 4 through-holes is offered on 11 bottom plate of lower hinge support, lower hinge support 11 is fixed on hoistway inner wall by expansion bolt.Bar
Part 8 is equipped with hinge 9, and the length for 8 bottom of positional distance rod piece that hinge 9 is arranged on rod piece 8 accounts for the 1/3 of 8 overall length of rod piece, liquid
Press 10 top of elevating mechanism and hinge 9 hinged.
Hydraulic processor 13 is fixed on hoistway inner wall, and is located at 10 lower section of hydraulicefficiency elevation structure.Hydraulic processor 13
It is connected with hydraulicefficiency elevation structure 10 by hydraulic connectors 12, hydraulic oil is led to inside hydraulic connectors 12.4 hydraulic processors 13
It is connected respectively with processor 5, processor 5 is also secured on hoistway inner wall.
As shown in Figure 1 and Figure 7, stress platform 3 is flow measurement device, comprising: bottom plate and bottom plate level board connected vertically
With the stress section 15 for being close to side edge setting above level board.4 through-holes 14 are provided on bottom plate, bottom plate is fixed on by long spiro nail
On hoistway inner wall, level board face drainage channel.A stress platform is correspondingly arranged above the rod piece 8 of each drive adjusting device 4
3,4 stress sections 15 are connected with processor 5 respectively.
Drain discharge at 4 well lid board members is measured respectively by corresponding to stress section 15, and 4 stress sections 15 will correspond to respectively
The water flow signal of position is sent to processor 5.When the water flow of a certain stress section 15 transmission reaches setting value, processor 5
Instruction is sent to 4 hydraulic processors 13, hydraulic processor 13 controls hydraulicefficiency elevation structure 10 and goes up and down, and makes four well lid board members
Move up and down simultaneously vertical deflection.When hydraulicefficiency elevation structure 10 is contracted to most short status, well lid board member is arranged close to vertical state
The unobstructed degree of water reaches maximum.
When four manhole cover plate sections, there are gaps between the bottom of groove 7 and the lower surface of square 1, to meet four
A well lid board member is not interfered when moving up and down.In the present embodiment, the depth of groove 7 is 2cm, square 1 with a thickness of
1cm, manhole cover plate 2 with a thickness of 3.5cm, the depth of groove 7 is 1cm bigger than the thickness of square 1.
Under original state, the upper surface of square 1 and the upper surface of manhole cover plate 2 are concordant with ground, when vehicle being avoided to pass through
Generation is jolted.At this point, the lower surface 1cm of the 7 distance from bottom square 1 of groove on manhole cover plate.When a certain stress section 15 is transmitted to place
When managing the flow of device 5 more than or equal to setting value, processor 5 makes 4 drive adjusting devices 4 work.Well lid board member 1. and 3. on
1cm is risen, and is close to square 1.Then, 2. and 4. well lid board member declines, 1. and 3. well lid board member declines immediately, until hydraulic
Elevating mechanism 10 is contracted to most short status.When the flow that four stress sections 15 are transmitted to processor 5 is respectively less than setting value, well lid
1. and 3. board member first rises to abutting square 1, immediately 2. 4. well lid board member, which rises to, is close to square 1, then, manhole cover plate structure
1. 2. 3. 4. part simultaneously declines 1cm, keep the upper surface of manhole cover plate 2 concordant with ground, return to original state.In the present embodiment, answer
The principle that power platform 3 measures water flow is: water is fallen on through drainage channel can generate corresponding moment M on level board, and foil gauge 15
It sets, biggish stress σ=M/W (section factor that W is level board) can be generated, the resistance of foil gauge 15 changes therewith, makes to transmit
Signal code size to processor 5 changes, and according to the relationship between water flow and size of current, processor 5 can be obtained
Obtain water flow size.
Concrete example explanation is carried out to the setting value of water flow in processor below.In the present embodiment, the length and width of stress platform 3
Height is respectively 15cm, 10cm and 1cm, and stress platform 3 is arranged on the well enclosure at hoistway mouth 30cm.
It is observed according to reality, when there is ponding on road surface, water can not be completely into the hole on road surface.In general, road surface
When having ponding, water has 1/3 can flow into hole.Thus, with 1/3 for ponding standard in the present embodiment, when hole flowing water area is more than
When 1/3, road surface can generate ponding.When water flows through stress platform, water be concentrated mainly on stress platform away from edge 0-5cm at, that is, assume
The area S flowed into is 75cm2.In the present embodiment, stress platform has 30cm away from top, so the time required to water flow flows to stress platform
Meet 1/2gt2=30cm, finds out t=0.245s, speed v=gt=2.45m/s, thus critical flow measures vS=
0.0184m3/s, so concentrated force F=mg=vS*1000=0.0184*1000*10=can be equivalent to the power of stress platform
184N, position are located at away from edge 2.5cm, so being M=(10cm-2.5cm) * 184N=to the couple that foil gauge generates
13.8N*m, section factor W=1/6*0.15*0.01*0.01=0.0000025m3, so the stress value that stress section generates is σ
=M/W=5.52MPa, so critical stress value takes 5.52MPa.
So, when water flow is more than or equal to vS=0.0184m3/s, hydraulicefficiency elevation structure is shunk, well lid in the present embodiment
Plate decline.Vice versa.The critical stress value of foil gauge is 5.52MPa.
In addition, hydraulicefficiency elevation structure 10, hydraulic processor 13 and processor 5 are carried out by 220V alternating current in the present embodiment
Energy supply.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of city intelligent drainage arrangement, which is characterized in that the device is arranged at hoistway mouth, comprising: square (1) and well lid
Plate (2), wherein the diameter of square (1) is greater than the diameter of manhole cover plate (2)；
Square (1) rides on the hoistway mouth, and manhole cover plate (2) setting is below square (1)；The center of manhole cover plate (2) and square
(1) the same vertical line in center；A circle drainage channel is formed between the outer rim and square (1) of manhole cover plate (2)；
Flow measurement device, processor (5) are fixedly installed on the hoistway inner wall below manhole cover plate (2) and well lid can be driven
Plate (2) moves up and down and the drive adjusting device (4) of vertical deflection；Drainage channel described in the flow measurement device face, place
Reason device (5) is connected with the flow measurement device and drive adjusting device (4) respectively；
Processor (5) receives the water flow signal that the flow measurement device measures, when water flow reaches setting value, processor
(5) it sends and instructs to drive adjusting device (4), drive adjusting device (4) drives manhole cover plate (2) to move up and down simultaneously vertical deflection.
2. city intelligent drainage arrangement according to claim 1, which is characterized in that drive adjusting device (4) includes: rod piece
(8), hydraulicefficiency elevation structure (10), hydraulic connectors (12) and hydraulic processor (13)；
Be fixedly connected with manhole cover plate (2) at the top of rod piece (8), rod piece (8) bottom with upper hinge support (16) hingedly, upper hinge support (16)
It is fixed on hoistway inner wall；
Hydraulicefficiency elevation structure (10) be it is rod-shaped, be located at rod piece (8) below；Hydraulicefficiency elevation structure (10) bottom and lower hinge support (11)
Hingedly, lower hinge support (11) is fixed on hoistway inner wall；Rod piece (8) is equipped with a hinge (9), hydraulicefficiency elevation structure (10) top
Portion and hinge (9) are hinged；
Hydraulic processor (13) is fixed on hoistway inner wall；Hydraulic processor (13) passes through hydraulic with hydraulicefficiency elevation structure (10)
Connector (12) is connected, and hydraulic processor (13) is also connected with processor (5)；
Processor (5) sends to hydraulic processor (13) and instructs, hydraulic processor (13) control hydraulicefficiency elevation structure (10) lifting,
Manhole cover plate (2) is set to move up and down simultaneously vertical deflection.
3. city intelligent drainage arrangement according to claim 2, which is characterized in that hinge (9) is arranged on rod piece (8)
The length of positional distance rod piece (8) bottom accounts for the 1/3 of rod piece (8) overall length.
4. city intelligent drainage arrangement according to claim 2, which is characterized in that the flow measurement device is stress platform
(3), stress platform (3) is located above rod piece (8), comprising: the bottom plate being fixed on hoistway inner wall, it is vertical with the bottom plate to connect
Level board and be close to the stress section (15) of side edge setting above the level board；Draining described in the level board face is logical
Road.
5. city intelligent drainage arrangement described in any one of -4 according to claim 1, which is characterized in that square (1) is netted
Integral structure, including several concentric loops and several spokes；Equal per adjacent two annulus spacing, the spoke is along outermost side ring
Be arranged radially, per adjacent two spokes angle it is equal；The spoke connection most inner side annulus outer rim and outermost side ring inner edge, and
With other annulus interconnections.
6. city intelligent drainage arrangement according to claim 5, which is characterized in that the upper surface of manhole cover plate (2) be provided with
The matched groove of shape (7) of square (1)；Square (1) is in the groove (7) of manhole cover plate (2) upper surface；The bottom of groove (7)
There are gaps between portion and the lower surface of square (1).
7. city intelligent drainage arrangement according to claim 6, which is characterized in that the cross section of groove (7) is inverted trapezoidal,
The width of the shorter bottom edge length of the inverted trapezoidal, the width of the annulus and the spoke is equal.
8. city intelligent drainage arrangement according to claim 6 or 7, which is characterized in that manhole cover plate (2) center be also provided with
The big through-holes such as square (1) most inner side annulus.
9. city intelligent drainage arrangement according to claim 8, which is characterized in that manhole cover plate (2) is if be radially divided into
Dry-well plate part；
A drive adjusting device (4) and one is fixedly installed on the hoistway inner wall of corresponding position immediately below each well lid board member
Stress platform (3)；
Stress platform (3) measures the water flow at corresponding well plate part and is transmitted to processor (5), when water flow reaches setting value
When, processor (5) sends to each drive adjusting device (4) and instructs, and each well lid board member is driven to move up and down simultaneously vertical deflection.
10. city intelligent drainage arrangement according to claim 9, which is characterized in that under each well lid board member
Surface is fixed with one piece of steel plate (6), is weldingly connected at the top of rod piece (8) with steel plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179133.2A CN109976210B (en) | 2019-03-11 | 2019-03-11 | City intelligence drainage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179133.2A CN109976210B (en) | 2019-03-11 | 2019-03-11 | City intelligence drainage device |
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| CN109976210A true CN109976210A (en) | 2019-07-05 |
| CN109976210B CN109976210B (en) | 2021-07-27 |
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| CN201910179133.2A Active CN109976210B (en) | 2019-03-11 | 2019-03-11 | City intelligence drainage device |
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| CN111648457A (en) * | 2020-05-25 | 2020-09-11 | 浙江鼎兴建设有限公司 | Municipal administration road drainage well |
| CN111779120A (en) * | 2020-08-11 | 2020-10-16 | 合肥江河建筑有限公司 | Pavement drainage structure and construction method thereof |
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| CN205742276U (en) * | 2015-12-31 | 2016-11-30 | 陕西理工学院 | A kind of flood control blockage resisting well lid |
| US20170356195A1 (en) * | 2016-02-22 | 2017-12-14 | Zurn Industries, Llc | Elevator Trench Drain |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111648457A (en) * | 2020-05-25 | 2020-09-11 | 浙江鼎兴建设有限公司 | Municipal administration road drainage well |
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| CN111779120B (en) * | 2020-08-11 | 2021-06-15 | 合肥江河建筑有限公司 | Pavement drainage structure and construction method thereof |
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| CN109976210B (en) | 2021-07-27 |
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